MESON Chess Problem Database
Problem Display
PID: 228236 (qr3b2/1p3QPb/2PP4/pR2p3/4k3/1pP3P1/1P5n/2KB1N2 w - - 0 1)
Chernyavsky, Mykola Vasilovich
Murashev, Pavel Aleksandrovich
Die Schwalbe, 2020
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Kd3
- 2.Qd5#
- 1...Bf5
- 2.Qc4#
- 2.Qd5#
- 1...Bg6
- 2.Qxg6#
- 1...Bg8
- 2.Qg6#
- 1...Sxf1
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sg4
- 2.Qf3#
- 1...Kd3
- Tries
- 1.Bxb3?
- threat
- 2.Bc2#
- 1...Kd3
- 2.Qc4#
- 1...Bf5
- 2.Qd5#
- 1...Sxf1!
- threat
- 1.Bf3+?
- 1...Kd3
- 2.Qd5#
- 1...Sxf3!
- 1...Kd3
- 1.Bg4?
- threat
- 2.Qc4#
- 2.Qd5#
- 1...Kd3
- 2.Qd5#
- 1...Sxf1
- 2.Qf3#
- 1...bxc6
- 2.Qc4#
- 1...Qa7
- 2.Qd5#
- 1...Bg8
- 2.Qg6#
- 2.Qf5#
- 1...Sf3
- 2.Qd5#
- 2.Qxf3#
- 1...Sxg4!
- threat
- 1.Rxb3?
- threat
- 2.Bc2#
- 1...Kd3
- 2.Qd5#
- 1...Sxf1
- 2.Qf3#
- 1...Bf5
- 2.Qc4#
- 1...Qa6!
- threat
- 1.Rb4+?
- 1...Kd3
- 2.Qc4#
- 2.Qd5#
- 1...axb4!
- 1...Kd3
- 1.Rxe5+?
- 1...Kd3
- 2.Be2#
- 2.Re3#
- 2.Qd5#
- 1...Kxe5!
- 1...Kd3
- 1.Qf4+?
- 1...Kd3
- 2.Rd5#
- 1...exf4!
- 1...Kd3
- 1.g4?
- threat
- 2.Qc4#
- 1...Kd3
- 2.Qd5#
- 1...Sxf1
- 2.Qf3#
- 1...Sxg4
- 2.Qf3#
- 1...Bg8
- 2.Qf5#
- 1...Sf3
- 2.Qxf3#
- 1...Qa7!
- threat
- 1.gxf8Q?
- threat
- 2.Qc4#
- 2.Qd5#
- 2.Qxh7#
- 1...Kd3
- 2.Qd5#
- 1...Sxf1
- 2.Qf3#
- 1...bxc6
- 2.Qc4#
- 2.Qxh7#
- 1...Qa7
- 2.Qd5#
- 2.Qxh7#
- 1...Bf5
- 2.Qc4#
- 2.Qd5#
- 2.Qxf5#
- 1...Bg6
- 2.Qc4#
- 2.Qd5#
- 2.Qxg6#
- 1...Bg8
- 2.Qg6#
- 2.Qf5#
- 1...Sf3
- 2.Qd5#
- 2.Qxf3#
- 2.Qxh7#
- 1...Rxf8!
- threat
- 1.gxf8S?
- threat
- 2.Qxh7#
- 1...Kd3
- 2.Qd5#
- 1...Sxf1
- 2.Qf3#
- 1...Bf5
- 2.Qc4#
- 2.Qd5#
- 1...Bg6
- 2.Qxg6#
- 1...Bg8
- 2.Qg6#
- 1...Rxf8!
- threat
- 1.gxf8B?
- threat
- 2.Qxh7#
- 1...Kd3
- 2.Qd5#
- 1...Sxf1
- 2.Qf3#
- 1...Bf5
- 2.Qc4#
- 2.Qd5#
- 1...Bg6
- 2.Qxg6#
- 1...Bg8
- 2.Qg6#
- 1...Rxf8!
- threat
- 1.gxf8R?
- threat
- 2.Qc4#
- 2.Qd5#
- 2.Qxh7#
- 1...Kd3
- 2.Qd5#
- 1...Sxf1
- 2.Qf3#
- 1...bxc6
- 2.Qc4#
- 2.Qxh7#
- 1...Qa7
- 2.Qd5#
- 2.Qxh7#
- 1...Bf5
- 2.Qc4#
- 2.Qd5#
- 2.Qxf5#
- 1...Bg6
- 2.Qc4#
- 2.Qd5#
- 2.Qxg6#
- 1...Bg8
- 2.Qg6#
- 2.Qf5#
- 1...Sf3
- 2.Qd5#
- 2.Qxf3#
- 2.Qxh7#
- 1...Rxf8!
- threat
- 1.g8Q?
- threat
- 2.Qgxh7#
- 2.Qfxh7#
- 1...Kd3
- 2.Qc4#
- 2.Qd5#
- 1...Bxg8
- 2.Qg6#
- 1...Sxf1
- 2.Qf3#
- 1...Bf5
- 2.Qc4#
- 2.Qd5#
- 1...Bg6
- 2.Qfxg6#
- 2.Qgxg6#
- 1...Bg7
- 2.Qxh7#
- 1...Bh6+!
- threat
- 1.g8B?
- threat
- 2.Bxh7#
- 2.Qxh7#
- 1...Kd3
- 2.Qc4#
- 2.Qd5#
- 1...Bxg8
- 2.Qg6#
- 1...Sxf1
- 2.Qf3#
- 1...Bf5
- 2.Qc4#
- 2.Qd5#
- 1...Bg6
- 2.Qxg6#
- 1...Bg7
- 2.Bxh7#
- 1...Bh6+!
- threat
- 1.Bxb3?
- Keys
- 1.Qh5!
- threat
- 2.Qxh7#
- 1...Kd3
- 2.Qe2#
- 1...Sxf1
- 2.Qf3#
- 1...Bf5
- 2.Qe2#
- 1...Bg6
- 2.Qxg6#
- 1...Bg8
- 2.Qg6#
- threat
- 1.Qh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- K(c);S_FLIGHT::QAR2(J)
- B(g);N_GUARD::QAB(J),XB(g)
- B(g);N_GUARD::QAB(J)
- S(a);N_GUARD,XS(C)::QAB1(J)
- S(a);N_GUARD::QAB1(J),XS(a)
- S(a);N_GUARD::QAB1(J)
- Tries
- Try
- B(B);XP(b)
- Threat
- B(B)
- Vars
- K(c);S_FLIGHT::QAB1(J)
- B(g);SBLOCK::QAB1(J)
- Refutation
- S(a);XS(C)
- Try
- B(B);CHECK
- Vars
- K(c);S_FLIGHT::QAR2(J)
- Refutation
- S(a);XB(B)
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- K(c);S_FLIGHT::QAR2(J)
- S(a);N_GUARD,XS(C)::QAB1(J)
- P(f);XP(H)::QAR2(J)
- Q(h);::QAB1(J)
- Refutation
- S(a);XB(B)
- Try
- R(G);XP(b)
- Threat
- B(B)
- Vars
- K(c);S_FLIGHT::QAR2(J)
- S(a);N_GUARD,XS(C)::QAB1(J)
- B(g);SBLOCK::QAR2(J)
- Refutation
- Q(h);
- Try
- R(G);CHECK
- Refutation
- P(d);XR(G)
- Try
- R(G);CHECK,XP(e)
- Refutation
- K(c);P-FLIGHT,XR(G)
- Try
- Q(J);CHECK
- Vars
- K(c);S_FLIGHT::R(G)
- Refutation
- P(e);XQ(J)
- Try
- P(F);
- Threat
- QAR2(J)
- Vars
- K(c);S_FLIGHT::QAR2(J)
- S(a);N_GUARD,XS(C)::QAB1(J)
- S(a);N_GUARD,XP(F)::QAB1(J)
- B(g);N_GUARD::QAB1(J)
- S(a);N_GUARD::QAB1(J),XS(a)
- Refutation
- Q(h);
- Try
- P(K);XB(j)
- Threat
- DUALS(3)
- Vars
- K(c);S_FLIGHT::QAR2(J)
- S(a);N_GUARD,XS(C)::QAB1(J)
- Refutation
- R(i);XQ(K)
- Try
- P(K);XB(j)
- Threat
- QAB(J),XB(g)
- Vars
- K(c);S_FLIGHT::QAR2(J)
- S(a);N_GUARD,XS(C)::QAB1(J)
- B(g);N_GUARD::QAB(J),XB(g)
- B(g);N_GUARD::QAB(J)
- Refutation
- R(i);XS(K)
- Try
- P(K);XB(j)
- Threat
- QAB(J),XB(g)
- Vars
- K(c);S_FLIGHT::QAR2(J)
- S(a);N_GUARD,XS(C)::QAB1(J)
- B(g);N_GUARD::QAB(J),XB(g)
- B(g);N_GUARD::QAB(J)
- Refutation
- R(i);XB(K)
- Try
- P(K);XB(j)
- Threat
- DUALS(3)
- Vars
- K(c);S_FLIGHT::QAR2(J)
- S(a);N_GUARD,XS(C)::QAB1(J)
- Refutation
- R(i);XR(K)
- Try
- P(K);
- Threat
- DUALS(2)
- Vars
- B(g);N_GUARD,XQ(K)::QAB(J)
- S(a);N_GUARD,XS(C)::QAB1(J)
- B(j);::QAB(K),XB(g)
- Refutation
- B(j);CHECK
- Try
- P(K);
- Threat
- DUALS(2)
- Vars
- B(g);N_GUARD,XB(K)::QAB(J)
- S(a);N_GUARD,XS(C)::QAB1(J)
- B(g);N_GUARD::QAB(J),XB(g)
- B(j);::B(K),XB(g)
- Refutation
- B(j);CHECK
- Try
- Actual
- Q(J);
- Threat
- QAB(J),XB(g)
- Vars
- K(c);S_FLIGHT::QAB1(J)
- S(a);N_GUARD,XS(C)::QAB1(J)
- B(g);SBLOCK::QAR2(J)
- B(g);N_GUARD::QAB(J),XB(g)
- B(g);N_GUARD::QAB(J)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).